多盘转子系统的振动失效灵敏度分析

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英文篇名：Vibration Failure Sensitivity Analysis of Multi-Disk Rotor System 作者：苏长青 ; 李紫薇 ; 郭凡逸 英文作者：SU Changqing;LI Ziwei;GUO Fanyi;School of Safety Engineering,Shenyang Aerospace University;Liaoning Key Laboratory of Aircraft Safety and Airworthiness; 关键词：转子系统 ; 共振 ; 失效灵敏度 ; 蒙特卡罗法 英文关键词：rotor system;;resonance;;failure sensitivity;;Monte Carlo method 中文刊名：CUXI 英文刊名：Journal of Ordnance Equipment Engineering 机构：沈阳航空航天大学安全工程学院;辽宁省飞机火爆防控及可靠性适航技术重点实验室; 出版日期：2019-07-25 出版单位：兵器装备工程学报 年：2019 期：v.40;No.252 语种：中文; 页：CUXI201907039 页数：4 CN：07 ISSN：50-1213/TJ 分类号：202-205

摘要

根据转子系统的固有频率与激振频率差的绝对值不超过规定值的失效准则,定义多盘转子系统的振动极限状态方程,计算在多失效模式下多盘转子系统的共振失效概率。采用Monte Carlo法随机抽样,得到转子系统的各阶固有频率的均值与标准差,计算出在各激振频率下各随机参数统计特性对系统固有频率的失效灵敏度,研究了随机参数的统计特性对多盘转子系统共振发生概率的影响规律。
        For the three-disk rotor system with support stiffness and damping,the finite element method was used to establish the response equation of the rotor system,and the natural frequencies of the rotor system were obtained.According to the failure criterion that the absolute value of the rotor system 's natural frequency and the excitation frequency difference does not exceed the specified value,the vibration limit state equation of the multi-disk rotor system was defined,and the resonance failure probability of the multi-disc rotor system in the multiple failure mode was calculated.The Monte Carlo method was used to randomly sample the mean and standard deviation of the natural frequencies of the rotor system,and the failure sensitivity of the statistical properties of each random parameter to the natural frequency of the system was calculated.The statistics of random parameters were studied.The influence of characteristics on the probability of resonance of multi-disc rotor system were studied.

引文

[1]钟一谔,何衍宗,王正,等.转子动力学[M].北京:清华大学出版社,1987:176-186.
    [2]BERGMAN L A,HEINRICH J C.On the linear oscillator and systems of coupled oscillators[J].International Joumal for Numerical Methods in Engineering,1982,18:1271-1295.
    [3]ZHANG Y,WEN B,LIU Q.First passage of uncertain single degree-of-freedom nonlinear oscillators[J].Computer Methods in Applied Mechanics&Engineering,1998,165(1):223-231.
    [4]ZHANG Yimin,WEN Bangchun,LIU Qiaoling.Reliability analysis for random MDOF nonlinear systems with independence failure mode[C]//Proceedings of Asia-Pacific Vibration Conference.1997,Kyongju,Korea,November,1997:987-990.
    [5]金向明,高德平,蔡显新,等.整体离心叶轮叶片的振动可靠性分析[J].航空动力学报,2004(5):610-613.
    [6]王延荣,田爱梅.结构振动可靠性设计方法研究[J].航空动力学报,2003(2):191-194.
    [7]苏长青,张义民,杜劲松.具有相关失效模式转子系统的频率可靠性研究[J].机械工程学报,2012,48(6):175-179.
    [8]周宗和,杨自春.基于积分随机有限元法的汽轮机转子随机响应特性分析[J].中国机电工程学报,2011,31(2):67-72.
    [9]孙红岩.利用有限元进行转子系统的动力学分析[D].西安:西安建筑大学,2008:20-32.
    [10]单萃冷.平行轴系斜齿轮转子系统频率可靠性及可靠性灵敏度研究[D].沈阳:东北大学,2011.